* -ly: Creates an adverb meaning "clearly" or "separately." Example: "The two colors were distinctly different."
* -ness: Creates a noun meaning "the state of being distinct." Example: "The distinctness of her voice made her stand out."
* -ion: Creates a noun meaning "the act of distinguishing." Example: (Less common) "The distinct ion of the two species was a difficult task."
* -ive: Creates an adjective meaning "characterized by being distinct." Example: "The painting had a very distinctive style."
The most common and useful suffixes are "-ly" and "-ness."